Joseph p



(No Model.)

2 Sheets-Sheet 1.. J. P. BUGKINGHAM.

PAPER BOX.

No. 320,381. Patented June 16, 1885.

N. PETERS. Photo-blhugnphnr. wnmn m, u. c,

(N0 ModeL) 2 Sheets-Sheet 2.

J. P. BUOKINGHAM.

PAPER BOX.

No. 320,331. Patented June 16, 1885.

n. PETERS. Photo-Lithographer, Washington, 0. c.

tartan STAT-ES FATENT @rrrcn.

JOSEPH P. BUOKINGHAM, OF NINV YORK, N. Y.

PAPER BOX.

SPECIFICATION forming part of Letters Patent No. 320,331, dated June 16, 1885. I

To all whom, it may concern:

Be it known that I, JOSEPH P. BUCKING- HAM, a citizen of the United States, residing in the city, county, and State of New York, have invented certain new and useful Improvements in Paper Boxes, of which the following is a specification.

My invention relates to knockdown paper or pasteboard boxes, and more particularly to that class of knockdownbo'xes known as self sealing tubular boxes, and it has for its object to produce an improved tubular box that can be cheaply made and be securely and firmly held together when locked, and will be less liable to be crushed or jammed; and to these ends it consists in a box constructed substantially as more particularly pointed out hereinafter.

Referring to the accompanying drawings, forming part of this specification, Figure 1 is a perspective view of the box with one end open. Figs. 2 and 3 are plans of the parts of the tube. Fig. 2 is a cross-section of the blank shown in Fig. 2, taken on the line as at. Figs. 4 and 5 are plans of the end piece. Figs. 6 and 7 are sections through the box on the lines .92 a: and y y, respectively. Fig. 8 is an end view of the box, and Fig. 9 is a perspective of the box folded for transportation and storage.

Folding tubular boxes have heretofore been made of a single piece of material cut and creased so as to form a tube with an overlapping flap or lip. Such construction necessitates the use of the same material for the whole tube, and confines the practical manufacture of such tubular boxes to certain qualities of material. If the material is too thin, the box will not be substantial enough to keep its shape under all the required conditions, especially where a certain amount of strength and durability is desired. If they are made of stock sufficiently thick and stiff to secure the desired rigidity, the box becomes cumbersome, and the stock is liable to break at the folding lines, or the folding lines are irregular and bulky. On the other hand, when the stock is of such a thickness as to permit the folds to be even and flexible in the desired manner, it is lacking in the desired stiffness to keep-its form, and the box is flimsy and liable to be crushed. To overcome these objections in a certain de- (No model.)

gree, I make the tube of two parts and join them together, so thatthey mutually reenl'orce each other.

Thus, in the drawings, A may be designated the upper part, and B thelower part, and each consists of three sections a middle one, a b, which may form the top and bottom of the box or tube, and side sections, 0 c and d d, which are arranged against and lapping by each other to form sides of the tube of two thicknesses of material. It will thus be seen that by the use of the two substantially rectangular blanks a rectangular tube may be formed having its sides of double thickness, and these will furnish a degree of rigidity to the tube, and at the same time allow of use of such a stock that the lines of fold between the sections will be strong and at the same time flexible.

Another important result is obtained by this construction which is very valuable in certain instances, and that is, the different portions of the tube may be made of different kinds of stockas, for instance, the bottom portion can be made of common cheap strawboard and the upper portion of a finer quality of material, as Manila paper or paper or board covered with fancy-colored or other paper, or otherwise ornamented. In this manner the top and outer portions of the sides may be ornamented in any way, while the bottom and inner side pieces are of cheap and strong material, furnishing the desired degree of rigidity.

\Vhen a fine or fancy box is desired, the upper portion, as A, may be of a thin card-board or Manila paper and a re-enforcing strip or lining, '1, (shown in Fig. 2,) may be placed on the inner side of the section a, which, with the re-enforced or double sides, will make a very strong and substantial tube or box at comparatively little cost.

Another feature of my invention consists in the end closing portions. These consist of pieces substantially of the shape shown in Fig. 5, each having three sectionsviz., a middle section, 0, forming the end of the tube, section 9, which is secured to the inside of the tube and practically forms the hinge-piece for the end section, and a tucking-flap, h. Side tucking-flaps, ff, being prolongations of the end These portions may be section, 6, are used.

strengthened by a second portion, 0, of some stronger material, secured thereto in any suitable manner, and consisting of two sections, and h, corresponding to the same section of the portion D. When these two portions are secured together and to the tube by means of the section r and the tucking-flaps properly will form small slots or pockets 0 0 (shown in dotted lines in Fig. 1) for the reception of the side edges of the tucking-flap h orh h. When the box is made of very light material, the pockets thus formed are shallow, and I sometimes use a small block of board, as 2, for the end of the flap to rest upon. The stiffening piece I may be cut away at the middle portion of its side edges, as shown atj in Fig. 2, so as to be a little inside of the folding lines of the portion A, as indicated by broken lines, while the edges near the ends are made nearly the full width of the top portion; but ordinarily I prefer to make the edges straight. So, also, the middle portions, k k, of theside edges of sections d d of the portion B are made of a width to fit closely to the folding line when the portions A and B are joined together. The object of this construction is to have the reenforcing parts support the stock at the folding lines, and they are made in the manner described, so as to interlock and form a sort of hinge-bearing, the effect of which will be more readily appreciated by reference to Figs. 6 and 7, which are respectively sectional views on the lines a: and y of Fig. 1.

I make the sections it of the end pieces slightly longer than the central sections, e, for the purpose of allowing room for the tuckingflaps f to be bent on the folding lines 2, when so bent to form a rectangle of the proper size on its outside edges to fit closely into the end of the tube, the projecting edges of the tucking-section h fitting snugly into the recesses or slots 0 0, formed by the cut-away portions i'of the part B.

It will be readily seen that by this construction, while the ends of the tube are not held by positive locking devices, a very secure and efficient fastening arrangement is attained, and by a very simple and cheap construction.

This has been found to be secure enough as-a;

lock for a large variety of boxes, and when desired it can be completely closed and positively secured by sealing or gumming the tucking-flaps, as indicated at Fig. 1. Thus the box may be used with both ends simply secured by the tucking-flaps, or one end may be sealed, leaving the other end open, for the purpose of putting in and takin gout the goods, the open end being secured by the tuckingflaps; or both ends may be sealed after the box is filled, as when used for cereals, seeds, starch, 80c. V

The tubular boxes formed of tubes so joined together with the ends secured in place may be folded for transportation or storage, as shown in Fig. 9, the tube being folded at diagonally-opposite corners to bring the body parts in contact, and the end closing portions being folded back over the bottom of the tube, the outer flaps, f, being also folded over the end pieces, D, makinga fiat rectangular-shaped body of the whole.

Without limiting myself to the precise details and construction, what I claim i s 1. A box-tube made from two substantially rectangular blanks, bent and arranged with their inner sections forming single sides, and their outer sections overlapping to form double sides, substantially as described.

2. A tubular box made from two substantially rectangular blanks of different qualities,

of material, bent and arranged with their in-' ner sections forming single sides, and the outer sections of the blanks being joined to form double sides, and rectangular end closing portions provided with tucking-flaps, and having a re-enforcing piece applied to a single side, substantially as described.

5. The combination, with a tubular box, of end closing portions consisting of a rectangular section, e, having a hinge-section, g and tucking-flaps h f, the flap it having slightly-projecting ends, as set forth.

6. The combination, with a tubular box, of end closing portions consisting of a rectangular portion, D, having hinge-section g and tucking-flaps h f, and a re-enforeing portion, 0, secured to the body D, as set forth.

7. The combination, in a tubular box having double sides, the inner sides being cut stantially rectangular blanks, A B, the blank to this specification in the presence of two A having a re-enforoing strip, Z, cut away, as subscribing witnesses. at j, and the blank B being cut away, as at i,

the two blanks being joined together, as set JOSEPH BUGLINGHAM' 5 forth, whereby the folding lines are re-en- \Vitnesses:

forced, as set forth. GEO. H. EvANs,

In testimony whereof I have signed my name JAMES COLEMAN. 

